dB Technologies DVA KS20 User manual

MANUALE D’USO – Sezione 1

USER MANUAL - Section 1

Le avvertenze nel presente manuale devono essere osservate congiuntamente al “MANUALE D’USO - Sezione 2”.

The warnings in this manual must be observed together with the "User Manual - Section 2".

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DVA KS20 Cod. 420120234 REV. 1.0

EMI CLASSIFICATION

FCC CLASS A STATEMENT ACCORDING TO TITLE 47, PART 15, SUBPART B,

§15.105

EMI CLASSIFICATION

According to the standards EN 55103 this equipment is designed and suitable to operate in E5 Electromagnetic

environments.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part

15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference when the equipment is

operated in a commercial environment.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in

accordance with the instructions, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will

be required to correct the interference at his own expense.

Make sure that the loudspeaker is securely installed in a stable position to avoid any injuries or damages to

persons or properties. For safety reasons di not place one loudspeaker on top of another without proper fastening

systems. Before hanging the loudspeaker check all the components for damages, deformations, missing or

damaged parts that may compromise safety during installation. If you use the loudspeakers outdoor avoid spots

exposed to bad weather conditions.

Contact dBTechnologies for accessories to be used with the speakers. dBTechnologies will not accept any

responsibility for damages caused by inappropiate accessories or additional devices.

WARNING

3

DVA KS20

Cod. 420120234 REV. 1.0

ITALIANO

ENGLISH

4

DVA KS20 Cod. 420120234 REV. 1.0

1. INFORMAZIONI GENERALI ................................................................................................... 5

BENVENUTI! ........................................................................................................................ 5

PANORAMICA INTRODUTTIVA .......................................................................................... 5

RIFERIMENTI PER L’UTENTE ................................................................................................ 5

CARATTERISTICHE MECCANICHE ED ACUSTICHE ............................................................. 6

DIMENSIONI E MECCANICA ...................................................................................................................... 6

COPERTURA ACUSTICA ............................................................................................................................. 6

ACCESSORI ................................................................................................................................................. 6

CARATTERISTICHE DELLA SEZIONE DI AMPLIFICAZIONE E DI CONTROLLO ................... 7

SEZIONE DI INPUT, OUTPUT E DI CONTROLLO ........................................................................................ 8

2. PRIMA ACCENSIONE ............................................................................................................ 10

CONTENUTO DELLA CONFEZIONE .................................................................................. 10

PREPARAZIONE ALL’UTILIZZO .......................................................................................... 10

UTILIZZO DI DBTECHNOLOGIES COMPOSER .................................................................. 11

COLLEGAMENTO E RILANCIO DELL’ALIMENTAZIONE FRA 2 SUB .......................................................... 12

COLLEGAMENTO E RILANCIO AUDIO DELL’INGRESSO FRA 2 SUB ........................................................ 13

CONFIGURAZIONE E OTTIMIZZAZIONE ......................................................................... 15

3. ESEMPI DI INSTALLAZIONE ................................................................................................. 16

4. AGGIORNAMENTO DEL FIRMWARE .................................................................................. 18

5. RISOLUZIONE DEI PROBLEMI ............................................................................................. 19

6. SPECIFICHE TECNICHE DVA KS20 ....................................................................................... 20

GENERALE ................................................................................................................................................ 20

DATI ACUSTICI .......................................................................................................................................... 20

AMPLIFICATORE ....................................................................................................................................... 20

INTERFACCIA UTENTE .............................................................................................................................. 20

PROCESSORE ............................................................................................................................................ 21

INGRESSI E USCITE ................................................................................................................................... 21

SPECIFICHE DI ALIMENTAZIONE ............................................................................................................. 21

DIMENSIONI ............................................................................................................................................. 21

Italiano

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DVA KS20

Cod. 420120234 REV. 1.0

Italiano

11. FUSIBILI DI RETE

Alloggiamento dei fusibili di rete

9. MAINS INPUT

Connettore di alimentazione per cavo dotato di

connettore powerCON

10. MAINS LINK

Connettore per il rilancio

dell’alimentazione. Riporta in

targa corrente e potenza massima

complessive in un sistema rilanciato

Nella tabella sottostante è riportato uno schema del comportamento dei LED.

TIPO LED FASE DI ACCENSIONE

DELLO SPEAKER

IN FUNZIONE

NORMALE

WARNING

GENERICO

BLOCCO PER

ANOMALIA DELLO

SPEAKER

LIMITER SPENTO SPENTO, SI

ACCENDE SOLO

CON DISTORSIONE

LAMPEGGIO

MOMENTANEO

LAMPEGGIO CICLICO

CONTINUO

SIGNAL

SPENTO LAMPEGGIO

IN PRESENZA DI

SEGNALE

SEGNALAZIONE

NORMALE DI

AUDIO IN

INGRESSO

SPENTO

MUTE/

PROT

ACCESO PER QUALCHE

SECONDO

SPENTO LAMPEGGIO

MOMENTANEO

ACCESSO FISSO

READY SPENTO ACCESO FISSO ACCESO FISSO SPENTO

Tabella di segnalazione dei LED

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DVA KS20 Cod. 420120234 REV. 1.0

Italiano

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DVA KS20 Cod. 420120234 REV. 1.0

Tipologia: Digipro® G3

Classe di amplicazione: Classe D

Potenza di amplicazione (Picco) 3600 W

Potenza di amplicazione (RMS): 1800 W

Connettore di alimentazione: (PowerCON® In + Out

Tecnica di rareddamento: Convezione

Risposta in frequenza [- 10 dB]: 41 -120 Hz

LF: 2x18”

LF voice coil: 4”

Frequenza di crossover: 90 / 120 Hz (selezionabile)

Tipologia: Subwoofer attivo semi-caricato a tromba

GENERALE

6. SPECIFICHE TECNICHE DVA KS20

DATI ACUSTICI

AMPLIFICATORE

INTERFACCIA UTENTE

Controlli:

Subwoofer setup (Delay, Phase), Subwoofer level, Xover switch,

Outputs Mode switch

Led di segnalazione Limiter, Signal, Mute/Prot, Ready

Italiano

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23

DVA KS20 Code 420120233 REV. 1.0

English

1. GENERAL INFORMATION .................................................................................................... 24

WELCOME! ....................................................................................................................... 24

PRELIMINARY OVERVIEW ................................................................................................ 24

USER REFERENCES ............................................................................................................ 24

MECHANICAL AND ACOUSTIC CHARACTERISTICS .......................................................... 25

DIMENSIONS AND HARDWARE .............................................................................................................. 25

ACOUSTIC COVERAGE ............................................................................................................................. 25

ACCESSORIES ........................................................................................................................................... 25

CHARACTERISTICS OF THE AMPLIFICATION AND CONTROL SECTION .......................... 26

INPUT, OUTPUT AND CONTROL SECTION .............................................................................................. 27

2. FIRST SWITCH-ON ................................................................................................................ 29

PACKAGE CONTENTS ........................................................................................................ 29

PRELIMINARY OPERATIONS ............................................................................................. 29

USING DBTECHNOLOGIES COMPOSER ........................................................................... 30

CONNECTING AND LINKING OF POWER SUPPLY BETWEEN 2 SUBS .................................................... 31

CONNECTING AND LINKING OF AUDIO SIGNAL BETWEEN 2 SUBS ...................................................... 32

CONFIGURATION AND OPTIMISATION .......................................................................... 34

3. INSTALLATION EXAMPLES .................................................................................................. 35

4. FIRMWARE UPDATES ........................................................................................................... 37

5. TROUBLESHOOTING ............................................................................................................ 38

6. TECHNICAL SPECIFICATIONS DVA KS20 ............................................................................ 39

GENERAL .................................................................................................................................................. 39

ACOUSTIC DATA ....................................................................................................................................... 39

AMPLIFIER ................................................................................................................................................ 39

USER INTERFACE ...................................................................................................................................... 39

PROCESSOR .............................................................................................................................................. 40

USER INTERFACE ...................................................................................................................................... 40

INPUTS AND OUTPUTS ............................................................................................................................ 40

POWER SUPPLY SPECIFICATIONS ........................................................................................................... 40

DIMENSIONS ............................................................................................................................................ 40

24

DVA KS20

Code 420120233 REV. 1.0

English

Thank you for purchasing a product designed and developed in Italy by dBTechnologies! This active subwoofer is

the result of years of experience and innovation in speakers, with the use of cutting-edge solutions in the elds of

acoustics, electronics and materials research.

1. GENERAL INFORMATION

WELCOME!

PRELIMINARY OVERVIEW

The DVA KS20 active subwoofer is an active subwoofer designed by building upon the innovation and

professional quality of the DVA series. The semi horn-loaded conguration allows for acoustic optimization. The

DSP, controlling the next-generation amplier DIGIPRO G3, makes it possible to easily and accurately congure

the sound behaviour in professional use congurations. When coupled with the new DVA K5 series line-array

modules, it can meet any and all needs, in any installation and tour context.

The main features of KS20 are:

• powerful and noiseless amplication section, thanks to the new DIGIPRO G3 D-class amplier which

requires no active ventilation and makes it possible to achieve 1800 W peak power.

• SPL (peak) of 138 dB

• high-quality 2x18” woofers

• equipped with handles and mounting points to ensure fast and versatile use in any context

• fast and accurate DSP conguration using the delay, phase and crossover controls.

USER REFERENCES

To get the most from your DVA KS20 we recommend that you:

• thoroughly read the quick start user manual you will nd in the package and this manual, and keep it

throughout the product life.

• register the product on the site http://www.dbtechnologies.com, in the “SUPPORT” section

• Update the rmware to the latest version (check the section “FIRMWARE UPDATE”

• keep your proof of purchase and the WARRANTY (User manual “section 2”).

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DVA KS20 Code 420120233 REV. 1.0

English

ACOUSTIC COVERAGE

MECHANICAL AND ACOUSTIC CHARACTERISTICS

DIMENSIONS AND HARDWARE

The DVA KS20 weighs 84 kg, and its dimensions are 1100 x

580 x 720 mm.

The wooden housing is equipped with 2 built-in mounting

points; in particular, it has 2 points on its side, allowing to use

the DRK-10/DRK-20 y-bar; this way, when the subwoofer is

arranged vertically, it can be stacked with the DVA K5 module.

It also includes a free-standing mount with an M20 threaded

hole.

Using the phase and delay controls, you can ne-tune the

most appropriate conguration (Endre, Cardioid), to get

optimum directivity in every context.

ACCESSORIES

The following items are available as optionals, for system

installation, transport and protection:

For any further information, please refer to the site www.

dbtechnologies.com and to the relevant manuals of each individual

accessory.

• SWK-18 kit

• DRK-10 and DRK-20 y-bar

• S2 pole

• DCK-15, DPC-15, DAC 15, DPC-1000M, kit DCK-15, DCK-

45 e DCK-45 TypeB cable kit

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DVA KS20

Code 420120233 REV. 1.0

English

INPUT, OUTPUT AND

CONTROL SECTION

POWER SUPPLY

SECTION

• Input, Output and Control section

• Power supply section

The DIGIPRO G3 panel consists of:

• Protect the module from humidity.

• Never try to open the amplier.

• In case of malfunction, immediately

cut off the power supply, by

disconnecting the module from the

mains, then contact an authorised

repairman.

ATTENTION!

The D-class next generation amplier DIGIPRO

G3 features a SMPS power supply section with a

particularly efcient auto-range function. The system is

noiseless, as it doesn't require a ventilation system.

The system is controlled by a powerful DSP that

makes it possible to readily and quickly congure the

subwoofer in any usage context

CHARACTERISTICS OF THE AMPLIFICATION AND CONTROL SECTION

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DVA KS20 Code 420120233 REV. 1.0

English

4. OUTPUTS MODE

Makes it possible to choose the type of lter. If “LINK” is selected, no lter is applied. If “XOVER” is selected, a

lter is applied, at the frequency chosen with [5] “XOVER” switch.

INPUT, OUTPUT AND CONTROL SECTION

7. WARNING LEDS

LED Limiter, Signal, Mute/Prot, Ready

In normal operation, Ready LED is steadily on, Signal LED starts blinking at the presence of the signal. For further

information please check the table on the next page.

5. “XOVER” SWITCH

This switch is used to select the crossover frequency (120 Hz, 90 Hz)

6. “SUBWOOFER SETUP” CONTROLS

Rotary “Delay” control to set the delay time in ms (e.g in an End-re conguration), and a “Phase”

button for phase inversion (e.g. in a Cardioid conguration).

3. SUBWOOFER LEVEL

Rotary which controls the output level.

Set to 0 dB (mono or stereo )for

common applications.

8. SERVICE DATA

The type-B mini USB port must only be used to update the product rmware For further information, please refer

to the Web site http://www.dbtechnologies.com in section “DOWNLOADS” and to chapter FIRMWARE UPDATE.

1. BALANCED INPUTS

There are 2 inputs (mono or stereo

conguration) for balanced cables with

XLR connectors.

2. BALANCED OUTPUTS

There are 2 outputs (mono or stereo

conguration) for balanced cables with

XLR connectors.

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DVA KS20

Code 420120233 REV. 1.0

English

11. MAINS FUSE

Mains fuses housing

9. MAINS INPUT

Power supply connector for cable equipped with powerCON connector.

10. MAINS LINK

Connector for power supply link. The nameplate

shows the maximum and total current

and power of a linked system

The table below shows a diagram summarising the LED behaviour during certain speaker operation stages.

LED TYPE SPEAKER

SWITCH-ON

NORMAL

OPERATION

GENERIC

WARNING

STOP DUE TO

SPEAKER MALFUNCTION

LIMITER OFF OFF, IT STARTS

BLINKING ONLY

IN DISTORSION

CASE

TEMPORARY

BLINKING

ONGOING CYCLIC BLINKING

SIGNAL OFF BLINKING WITH

SIGNAL

NORMAL INPUT

AUDIO INDICA-

TION

OFF

MUTE/

PROT

ON FOR A

FEW SECONDS

OFF TEMPORARY

BLINKING

STEADILY ON

READY OFF STEADILY ON STEADILY ON OFF

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DVA KS20 Code 420120233 REV. 1.0

English

PACKAGE CONTENTS

The DVA KS20 package includes:

1. DVA KS20

2. Quick start and warranty/safety-related documents

The DVA K5 built-in mechanical components installed on each

speaker side are:

A - PREDISPOSITIONS FOR M20 POLE MOUNTING

B - PREDISPOSITIONS FOR DRK-10 AND DRK-20

C - METAL HANDLES

D - HOLES FOR WHEEL MOUNTING (SWK-18 kit)

PRELIMINARY OPERATIONS

1. Disconnect all connections, including the

power supply one.

2. Wait for 5 minutes.

3. Replace the fuses with the two included in

the package for the 100-120 V range.

4. Use only the supplied cable

• The speaker is supplied with two pre-

installed fuses designed to operate within

the 220-240 V range. Should it need to

operate within the 100-120 V range:

ATTENTION!

3. Fuses to be installed if the system is to operate within the 100-120V range

4. Mains cable with powerCON connector

2. FIRST SWITCH-ON

• Remove the bag containing the fuses and the

mains cable

Before installing the equipment, when opening the

package remember to:

• Only use cables equipped with high-quality connectors. Using cables equipped with

poor-quality connectors might affect speaker operation.

• Never use the speaker for a prolonged time while the limiter LED is on or frequently blinking,

indicating the equipment is running under excessive stress conditions

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DVA KS20

Code 420120233 REV. 1.0

English

USING DBTECHNOLOGIES COMPOSER

The dBTechnologies Composer software, which can be downloaded for free

from www.dbtechnologies.com, is a tool allowing users to properly design

their audio system, recommended for all the equipment belonging to the

DVA series. It makes it possible to optimize all of the acoustic solutions for

which DVA KS20 subwoofers are used.

It proposes the optimum solution for the selected areas, specifying the line-

array module angle required to obtain the proposed coverage.

It also makes it possible to effectively check the safe installation of the line-

array modules, by simulating the static behaviour of the y-bars.

For further information please refer to the DOWNLOADS section of

www.dbtechnologies.com.

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DVA KS20 Code 420120233 REV. 1.0

English

ATTENTION!

SECOND DVA KS20 MODULE

CONNECTING AND LINKING OF POWER SUPPLY BETWEEN 2 SUBS

FIRST DVA KS20 MODULE

LINK

• Connect the rst module power supply to AUTO-RANGE MAINS INPUT (10). For this purpose,

use the cable equipped with a powerCON connector (included in the supply).

• Link the power supply from the rst to the second module, by connecting the MAINS LINK

OUTPUT (11) to the AUTO-RANGE MAINS INPUT (2), as shown in the gure.

• Repeat the operation (in case of more than 2 subwoofers) until all modules are connected

(check the maximum number of power supply extensions in thechnical specication section).

• The amplier nameplate of the DVA KS20 module species the

maximum and total current (and power) value of a multiple module

system with extension connections.

• The cables must be properly sized; design, installation and testing

of the system should be performed only by qualied personnel. AEB

Industriale accepts no responsibility in the event of use of cables

which are unsuitable, uncertied or incompatible with the proper

system sizing or with the regulations in force in the country of use.

POWER SUPPLY

32

DVA KS20

Code 420120233 REV. 1.0

English

• It is necessary to use one or two cables in input and one or more cables for links,

depending on the mono or stereo conguration needed, as shown. Use balanced

cables with XLR connectors (not supplied). For further information about available

cables, see the picture on p. 29

• Connect your MIXER/LINE source to the BALANCED INPUTS (1) of the rst subwoofer.

• Link the rst and the second subwoofer, connecting BALANCED OUTPUTS (2) of the

rst to BALANCED INPUTS (1) of the second one.

• Repeat the operation (in case of more than 2 subwoofers) to get the desired result.

CONNECTING AND LINKING OF AUDIO SIGNAL BETWEEN 2 SUBS

SECOND DVA KS20FIRST DVA KS20

MIXER/LINEA

SECOND DVA KS20FIRST DVA KS20

LINK

MIXER/LINE

INGRESSO

MONO CONFIGURATION

LINK

STEREO CONFIGURATION

INGRESSI

FIRST DVA KS20

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DVA KS20 Code 420120233 REV. 1.0

English

34

DVA KS20

Code 420120233 REV. 1.0

English

The main controls available to the user on the control panel are Xover (crossover frequency), Delay (with

a range of 0-4.5 ms and a resolution of 0.5 ms), and Phase (can be set to either 0° or 180°). For information

on which settings to use in the various potential congurations (e.g. Cardioid, End-re, line-array), refer to

the DVA COMPOSER.

CONFIGURATION AND OPTIMISATION

The DVA KS20, used alone, is a subwoofer characterised by its omnidirectional acoustic emission.

This behaviour is clear at lower frequencies, but becomes less well-dened as the frequency increases.

When used in a line-array and when used with other subwoofers, a series of controls are needed to optimise

the acoustic performance of the subwoofer and of the entire array.

Before turning on the unit, make sure that the Subwoofer level is turned to 0 dB in the right position

(stereo or mono according to the audio connections; for further details please refer to section). Then check

that the powerCON cable is properly connected (for further details please refer to the related section) and

turn on the upstream power supply.

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DVA KS20 Code 420120233 REV. 1.0

English

Stacked modules can be directly installed on a subwoofer, using a DRK-10/DRK-20

y-bar. For further information please refer to the relevant manuals.

INSTALLATION ON A POLE WITH THE DVA K5

3. INSTALLATION EXAMPLES

ATTENTION!

• Never use the handles or the subwoofer's built-in mounting holes to

install the subwoofer in an improper manner (for example to drag it) or

to hang it.

To install the DVA K5 on a DVA KS20 subwoofer, you must use a pole having a

diameter of 35 mm. For this type of installation, the distance between the speaker

base and the oor must not exceed 85 cm, and you can mount up to 2 DVA K5

modules. For this purpose you must use a DSA-4 accessory, and the downward

inclination of the speakers must not exceed 5°.

STACKED DVA K5 INSTALLATION WITH A FLY-BAR

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